#include<stdio.h>
int main()
{
	int a=3,b=4;
	int *p=NULL;
	p=&a;
	printf("%p\n",&p);
	printf("%p\n",*&p);
	printf("指针变量p的地址是：%p\n",p);
	printf("指针变量p的值是：%d\n",*p);
	return 0;
}